mirror of
https://git.linuxfromscratch.org/lfs.git
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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@9459 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
1054 lines
36 KiB
XML
1054 lines
36 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-system-util-linux" role="wrap">
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<?dbhtml filename="util-linux.html"?>
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<sect1info condition="script">
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<productname>util-linux</productname>
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<productnumber>&util-linux-version;</productnumber>
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<address>&util-linux-url;</address>
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</sect1info>
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<title>Util-linux-&util-linux-version;</title>
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<indexterm zone="ch-system-util-linux">
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<primary sortas="a-Util-linux">Util-linux</primary>
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</indexterm>
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<sect2 role="package">
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<title/>
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<para>The Util-linux package contains miscellaneous utility programs.
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Among them are utilities for handling file systems, consoles, partitions,
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and messages.</para>
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<segmentedlist>
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<segtitle>&buildtime;</segtitle>
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<segtitle>&diskspace;</segtitle>
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<seglistitem>
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<seg>&util-linux-ch6-sbu;</seg>
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<seg>&util-linux-ch6-du;</seg>
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</seglistitem>
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</segmentedlist>
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</sect2>
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<sect2 role="installation">
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<title>FHS compliance notes</title>
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<para>The FHS recommends using the <filename
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class="directory">/var/lib/hwclock</filename> directory instead of the
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usual <filename class="directory">/etc</filename> directory as the
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location for the <filename>adjtime</filename> file. To make the
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<command>hwclock</command> program FHS-compliant, run the
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following:</para>
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<screen><userinput remap="pre">sed -e 's@etc/adjtime@var/lib/hwclock/adjtime@g' \
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-i $(grep -rl '/etc/adjtime' .)
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mkdir -pv /var/lib/hwclock</userinput></screen>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Util-linux</title>
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<screen><userinput remap="configure">./configure --enable-arch --enable-partx --enable-write</userinput></screen>
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<variablelist>
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<title>The meaning of the configure options:</title>
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<varlistentry>
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<term><parameter>--enable-arch</parameter></term>
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<listitem>
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<para>Enables building the <command>arch</command> program</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--enable-partx</parameter></term>
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<listitem>
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<para>Enables building the <command>addpart</command>,
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<command>delpart</command> and <command>partx</command>
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programs</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--enable-write</parameter></term>
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<listitem>
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<para>Enables building the <command>write</command> program</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>Compile the package:</para>
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<screen><userinput remap="make">make</userinput></screen>
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<para>This package does not come with a test suite.</para>
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<para>Install the package:</para>
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<screen><userinput remap="install">make install</userinput></screen>
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</sect2>
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<sect2 id="contents-utillinux" role="content">
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<title>Contents of Util-linux</title>
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<segmentedlist>
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<segtitle>Installed programs</segtitle>
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<segtitle>Installed libraries</segtitle>
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<segtitle>Installed directories</segtitle>
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<seglistitem>
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<seg>addpart, agetty, arch, blkid, blockdev, cal, cfdisk, chkdupexe,
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chrt, col, colcrt, colrm, column, ctrlaltdel, cytune, ddate, delpart,
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dmesg, fallocate, fdformat, fdisk, findfs, findmnt, flock, fsck,
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fsck.cramfs, fsck.minix, fsfreeze, fstrim, getopt, hexdump, hwclock, i386,
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ionice, ipcmk, ipcrm, ipcs, isosize, ldattach, line, linux32, linux64,
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logger, look, losetup, lsblk, lscpu, mcookie, mkfs, mkfs.bfs, mkfs.cramfs,
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mkfs.minix, mkswap, more, mount, namei, partx, pg, pivot_root,
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readprofile, rename, renice, rev, rtcwake, script, scriptreplay,
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setarch, setsid, setterm, sfdisk, swaplabel, swapoff (link to swapon),
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swapon, switch_root, tailf, taskset, tunelp, ul, umount, unshare,
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uuidd, uuidgen, wall, whereis, wipefs, and write</seg>
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<seg>libblkid.{a,so}, libmount.{a,so}, libuuid.{a,so}</seg>
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<seg>/usr/share/getopt, /var/lib/hwclock</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<?dbhtml list-presentation="table"?>
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<varlistentry id="addpart">
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<term><command>addpart</command></term>
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<listitem>
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<para>Informs the Linux kernel of new partitions</para>
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<indexterm zone="ch-system-util-linux addpart">
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<primary sortas="b-addpart">addpart</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="agetty">
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<term><command>agetty</command></term>
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<listitem>
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<para>Opens a tty port, prompts for a login name,
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and then invokes the <command>login</command> program</para>
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<indexterm zone="ch-system-util-linux agetty">
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<primary sortas="b-agetty">agetty</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="arch">
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<term><command>arch</command></term>
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<listitem>
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<para>Reports the machine's architecture</para>
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<indexterm zone="ch-system-util-linux arch">
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<primary sortas="b-arch">arch</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="blkid">
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<term><command>blkid</command></term>
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<listitem>
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<para>A command line utility to locate and print block device
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attributes</para>
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<indexterm zone="ch-system-util-linux blkid">
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<primary sortas="b-blkid">blkid</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="blockdev">
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<term><command>blockdev</command></term>
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<listitem>
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<para>Allows users to call block device ioctls from the command
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line</para>
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<indexterm zone="ch-system-util-linux blockdev">
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<primary sortas="b-blockdev">blockdev</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="cal">
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<term><command>cal</command></term>
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<listitem>
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<para>Displays a simple calendar</para>
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<indexterm zone="ch-system-util-linux cal">
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<primary sortas="b-cal">cal</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="cfdisk">
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<term><command>cfdisk</command></term>
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<listitem>
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<para>Manipulates the partition table of the given device</para>
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<indexterm zone="ch-system-util-linux cfdisk">
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<primary sortas="b-cfdisk">cfdisk</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="chkdupexe">
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<term><command>chkdupexe</command></term>
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<listitem>
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<para>Finds duplicate executables</para>
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<indexterm zone="ch-system-util-linux chkdupexe">
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<primary sortas="b-chkdupexe">chkdupexe</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="chrt">
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<term><command>chrt</command></term>
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<listitem>
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<para>Manipulates real-time attributes of a process</para>
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<indexterm zone="ch-system-util-linux chrt">
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<primary sortas="b-chrt">chrt</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="col">
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<term><command>col</command></term>
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<listitem>
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<para>Filters out reverse line feeds</para>
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<indexterm zone="ch-system-util-linux col">
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<primary sortas="b-col">col</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="colcrt">
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<term><command>colcrt</command></term>
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<listitem>
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<para>Filters <command>nroff</command> output for terminals
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that lack some capabilities, such as overstriking and half-lines</para>
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<indexterm zone="ch-system-util-linux colcrt">
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<primary sortas="b-colcrt">colcrt</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="colrm">
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<term><command>colrm</command></term>
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<listitem>
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<para>Filters out the given columns</para>
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<indexterm zone="ch-system-util-linux colrm">
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<primary sortas="b-colrm">colrm</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="column">
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<term><command>column</command></term>
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<listitem>
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<para>Formats a given file into multiple columns</para>
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<indexterm zone="ch-system-util-linux column">
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<primary sortas="b-column">column</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="ctrlaltdel">
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<term><command>ctrlaltdel</command></term>
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<listitem>
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<para>Sets the function of the Ctrl+Alt+Del key combination to a
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hard or a soft reset</para>
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<indexterm zone="ch-system-util-linux ctrlaltdel">
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<primary sortas="b-ctrlaltdel">ctrlaltdel</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="cytune">
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<term><command>cytune</command></term>
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<listitem>
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<para>Tunes the parameters of the serial line drivers for
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Cyclades cards</para>
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<indexterm zone="ch-system-util-linux cytune">
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<primary sortas="b-cytune">cytune</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="ddate">
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<term><command>ddate</command></term>
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<listitem>
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<para>Gives the Discordian date or converts the given Gregorian date
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to a Discordian one</para>
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<indexterm zone="ch-system-util-linux ddate">
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<primary sortas="b-ddate">ddate</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="delpart">
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<term><command>delpart</command></term>
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<listitem>
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<para>Asks the Linux kernel to remove a partition</para>
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<indexterm zone="ch-system-util-linux delpart">
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<primary sortas="b-delpart">delpart</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="dmesg">
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<term><command>dmesg</command></term>
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<listitem>
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<para>Dumps the kernel boot messages</para>
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<indexterm zone="ch-system-util-linux dmesg">
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<primary sortas="b-dmesg">dmesg</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="fallocate">
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<term><command>fallocate</command></term>
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<listitem>
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<para>Preallocates space to a file</para>
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<indexterm zone="ch-system-util-linux fallocate">
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<primary sortas="b-fallocate">fallocate</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="fdformat">
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<term><command>fdformat</command></term>
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<listitem>
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<para>Low-level formats a floppy disk</para>
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<indexterm zone="ch-system-util-linux fdformat">
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<primary sortas="b-fdformat">fdformat</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="fdisk">
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<term><command>fdisk</command></term>
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<listitem>
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<para>Manipulates the paritition table of the given device</para>
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<indexterm zone="ch-system-util-linux fdisk">
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<primary sortas="b-fdisk">fdisk</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="findfs">
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<term><command>findfs</command></term>
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<listitem>
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<para>Finds a file system by label or Universally Unique Identifier
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(UUID)</para>
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<indexterm zone="ch-system-util-linux findfs">
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<primary sortas="b-findfs">findfs</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="findmnt">
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<term><command>findmnt</command></term>
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<listitem>
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<para>Is a command line interface to the libmount library
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for work with mountinfo, fstab and mtab files</para>
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<indexterm zone="ch-system-util-linux findmnt">
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<primary sortas="b-findmnt">findmnt</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="flock">
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<term><command>flock</command></term>
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<listitem>
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<para>Acquires a file lock and then executes a command with the lock
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held</para>
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<indexterm zone="ch-system-util-linux flock">
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<primary sortas="b-flock">flock</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="fsck">
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<term><command>fsck</command></term>
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<listitem>
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<para>Is used to check, and optionally repair, file systems</para>
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<indexterm zone="ch-system-util-linux fsck">
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<primary sortas="b-fsck">fsck</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="fsck.cramfs">
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<term><command>fsck.cramfs</command></term>
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<listitem>
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<para>Performs a consistency check on the Cramfs file system on the
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given device</para>
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<indexterm zone="ch-system-util-linux fsck.cramfs">
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<primary sortas="b-fsck.cramfs">fsck.cramfs</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="fsck.minix">
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<term><command>fsck.minix</command></term>
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<listitem>
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<para>Performs a consistency check on the Minix file system on the
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given device</para>
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<indexterm zone="ch-system-util-linux fsck.minix">
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<primary sortas="b-fsck.minix">fsck.minix</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="fsfreeze">
|
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<term><command>fsfreeze</command></term>
|
|
<listitem>
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<para>Is a very simple wrapper around FIFREEZE/FITHAW ioctl
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kernel driver operations</para>
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<indexterm zone="ch-system-util-linux fsfreeze">
|
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<primary sortas="b-fsfreeze">fsfreeze</primary>
|
|
</indexterm>
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|
</listitem>
|
|
</varlistentry>
|
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|
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<varlistentry id="fstrim">
|
|
<term><command>fstrim</command></term>
|
|
<listitem>
|
|
<para>Discards unused blocks on a mounted filesystem</para>
|
|
<indexterm zone="ch-system-util-linux fstrim">
|
|
<primary sortas="b-fstrim">fstrim</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="getopt">
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<term><command>getopt</command></term>
|
|
<listitem>
|
|
<para>Parses options in the given command line</para>
|
|
<indexterm zone="ch-system-util-linux getopt">
|
|
<primary sortas="b-getopt">getopt</primary>
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|
</indexterm>
|
|
</listitem>
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</varlistentry>
|
|
|
|
<varlistentry id="hexdump">
|
|
<term><command>hexdump</command></term>
|
|
<listitem>
|
|
<para>Dumps the given file in hexadecimal or in another given
|
|
format</para>
|
|
<indexterm zone="ch-system-util-linux hexdump">
|
|
<primary sortas="b-hexdump">hexdump</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="hwclock">
|
|
<term><command>hwclock</command></term>
|
|
<listitem>
|
|
<para>Reads or sets the system's hardware clock, also called
|
|
the Real-Time Clock (RTC) or Basic Input-Output System (BIOS)
|
|
clock</para>
|
|
<indexterm zone="ch-system-util-linux hwclock">
|
|
<primary sortas="b-hwclock">hwclock</primary>
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|
</indexterm>
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|
</listitem>
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|
</varlistentry>
|
|
|
|
<varlistentry id="i386">
|
|
<term><command>i386</command></term>
|
|
<listitem>
|
|
<para>A symbolic link to setarch</para>
|
|
<indexterm zone="ch-system-util-linux i386">
|
|
<primary sortas="b-i386">i386</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="ionice">
|
|
<term><command>ionice</command></term>
|
|
<listitem>
|
|
<para>Gets or sets the io scheduling class and priority for a program</para>
|
|
<indexterm zone="ch-system-util-linux ionice">
|
|
<primary sortas="b-ionice">ionice</primary>
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|
</indexterm>
|
|
</listitem>
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|
</varlistentry>
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|
|
<varlistentry id="ipcmk">
|
|
<term><command>ipcmk</command></term>
|
|
<listitem>
|
|
<para>Creates various IPC resources</para>
|
|
<indexterm zone="ch-system-util-linux ipcmk">
|
|
<primary sortas="b-ipcmk">ipcmk</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="ipcrm">
|
|
<term><command>ipcrm</command></term>
|
|
<listitem>
|
|
<para>Removes the given Inter-Process Communication (IPC) resource</para>
|
|
<indexterm zone="ch-system-util-linux ipcrm">
|
|
<primary sortas="b-ipcrm">ipcrm</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="ipcs">
|
|
<term><command>ipcs</command></term>
|
|
<listitem>
|
|
<para>Provides IPC status information</para>
|
|
<indexterm zone="ch-system-util-linux ipcs">
|
|
<primary sortas="b-ipcs">ipcs</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="isosize">
|
|
<term><command>isosize</command></term>
|
|
<listitem>
|
|
<para>Reports the size of an iso9660 file system</para>
|
|
<indexterm zone="ch-system-util-linux isosize">
|
|
<primary sortas="b-isosize">isosize</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="ldattach">
|
|
<term><command>ldattach</command></term>
|
|
<listitem>
|
|
<para>Attaches a line discipline to a serial line</para>
|
|
<indexterm zone="ch-system-util-linux ldattach">
|
|
<primary sortas="b-ldattach">ldattach</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="line">
|
|
<term><command>line</command></term>
|
|
<listitem>
|
|
<para>Copies a single line</para>
|
|
<indexterm zone="ch-system-util-linux line">
|
|
<primary sortas="b-line">line</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="linux32">
|
|
<term><command>linux32</command></term>
|
|
<listitem>
|
|
<para>A symbolic link to setarch</para>
|
|
<indexterm zone="ch-system-util-linux linux32">
|
|
<primary sortas="b-linux32">linux32</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="linux64">
|
|
<term><command>linux64</command></term>
|
|
<listitem>
|
|
<para>A symbolic link to setarch</para>
|
|
<indexterm zone="ch-system-util-linux linux64">
|
|
<primary sortas="b-linux64">linux64</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="logger">
|
|
<term><command>logger</command></term>
|
|
<listitem>
|
|
<para>Enters the given message into the system log</para>
|
|
<indexterm zone="ch-system-util-linux logger">
|
|
<primary sortas="b-logger">logger</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="look">
|
|
<term><command>look</command></term>
|
|
<listitem>
|
|
<para>Displays lines that begin with the given string</para>
|
|
<indexterm zone="ch-system-util-linux look">
|
|
<primary sortas="b-look">look</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="losetup">
|
|
<term><command>losetup</command></term>
|
|
<listitem>
|
|
<para>Sets up and controls loop devices</para>
|
|
<indexterm zone="ch-system-util-linux losetup">
|
|
<primary sortas="b-losetup">losetup</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="lsblk">
|
|
<term><command>lsblk</command></term>
|
|
<listitem>
|
|
<para>Lists information about all or selected block devices in
|
|
a tree-like format.</para>
|
|
<indexterm zone="ch-system-util-linux lsblk">
|
|
<primary sortas="b-lsblk">lsblk</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="lscpu">
|
|
<term><command>lscpu</command></term>
|
|
<listitem>
|
|
<para>Prints CPU architechture information</para>
|
|
<indexterm zone="ch-system-util-linux lscpu">
|
|
<primary sortas="b-lscpu">lscpu</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="mcookie">
|
|
<term><command>mcookie</command></term>
|
|
<listitem>
|
|
<para>Generates magic cookies (128-bit random hexadecimal numbers) for
|
|
<command>xauth</command></para>
|
|
<indexterm zone="ch-system-util-linux mcookie">
|
|
<primary sortas="b-mcookie">mcookie</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="mkfs">
|
|
<term><command>mkfs</command></term>
|
|
<listitem>
|
|
<para>Builds a file system on a device (usually a hard disk
|
|
partition)</para>
|
|
<indexterm zone="ch-system-util-linux mkfs">
|
|
<primary sortas="b-mkfs">mkfs</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="mkfs.bfs">
|
|
<term><command>mkfs.bfs</command></term>
|
|
<listitem>
|
|
<para>Creates a Santa Cruz Operations (SCO) bfs file system</para>
|
|
<indexterm zone="ch-system-util-linux mkfs.bfs">
|
|
<primary sortas="b-mkfs.bfs">mkfs.bfs</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="mkfs.cramfs">
|
|
<term><command>mkfs.cramfs</command></term>
|
|
<listitem>
|
|
<para>Creates a cramfs file system</para>
|
|
<indexterm zone="ch-system-util-linux mkfs.cramfs">
|
|
<primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="mkfs.minix">
|
|
<term><command>mkfs.minix</command></term>
|
|
<listitem>
|
|
<para>Creates a Minix file system</para>
|
|
<indexterm zone="ch-system-util-linux mkfs.minix">
|
|
<primary sortas="b-mkfs.minix">mkfs.minix</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="mkswap">
|
|
<term><command>mkswap</command></term>
|
|
<listitem>
|
|
<para>Initializes the given device or file to be used as a swap
|
|
area</para>
|
|
<indexterm zone="ch-system-util-linux mkswap">
|
|
<primary sortas="b-mkswap">mkswap</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="more">
|
|
<term><command>more</command></term>
|
|
<listitem>
|
|
<para>A filter for paging through text one screen at a time</para>
|
|
<indexterm zone="ch-system-util-linux more">
|
|
<primary sortas="b-more">more</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="mount">
|
|
<term><command>mount</command></term>
|
|
<listitem>
|
|
<para>Attaches the file system on the given device to a specified
|
|
directory in the file-system tree</para>
|
|
<indexterm zone="ch-system-util-linux mount">
|
|
<primary sortas="b-mount">mount</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="namei">
|
|
<term><command>namei</command></term>
|
|
<listitem>
|
|
<para>Shows the symbolic links in the given pathnames</para>
|
|
<indexterm zone="ch-system-util-linux namei">
|
|
<primary sortas="b-namei">namei</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="partx">
|
|
<term><command>partx</command></term>
|
|
<listitem>
|
|
<para>Tells the kernel about the presence and numbering of on-disk
|
|
partitions</para>
|
|
<indexterm zone="ch-system-util-linux partx">
|
|
<primary sortas="b-partx">partx</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="pg">
|
|
<term><command>pg</command></term>
|
|
<listitem>
|
|
<para>Displays a text file one screen full at a time</para>
|
|
<indexterm zone="ch-system-util-linux pg">
|
|
<primary sortas="b-pg">pg</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="pivot_root">
|
|
<term><command>pivot_root</command></term>
|
|
<listitem>
|
|
<para>Makes the given file system the new root file system of the
|
|
current process</para>
|
|
<indexterm zone="ch-system-util-linux pivot_root">
|
|
<primary sortas="b-pivot_root">pivot_root</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="readprofile">
|
|
<term><command>readprofile</command></term>
|
|
<listitem>
|
|
<para>Reads kernel profiling information</para>
|
|
<indexterm zone="ch-system-util-linux readprofile">
|
|
<primary sortas="b-readprofile">readprofile</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="rename">
|
|
<term><command>rename</command></term>
|
|
<listitem>
|
|
<para>Renames the given files, replacing a given string with
|
|
another</para>
|
|
<indexterm zone="ch-system-util-linux rename">
|
|
<primary sortas="b-rename">rename</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="renice">
|
|
<term><command>renice</command></term>
|
|
<listitem>
|
|
<para>Alters the priority of running processes</para>
|
|
<indexterm zone="ch-system-util-linux renice">
|
|
<primary sortas="b-renice">renice</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="rev">
|
|
<term><command>rev</command></term>
|
|
<listitem>
|
|
<para>Reverses the lines of a given file</para>
|
|
<indexterm zone="ch-system-util-linux rev">
|
|
<primary sortas="b-rev">rev</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="rtcwake">
|
|
<term><command>rtcwake</command></term>
|
|
<listitem>
|
|
<para>Used to enter a system sleep state until specified wakeup
|
|
time</para>
|
|
<indexterm zone="ch-system-util-linux rtcwake">
|
|
<primary sortas="b-rtcwake">rtcwake</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="script">
|
|
<term><command>script</command></term>
|
|
<listitem>
|
|
<para>Makes a typescript of a terminal session</para>
|
|
<indexterm zone="ch-system-util-linux script">
|
|
<primary sortas="b-script">script</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="scriptreplay">
|
|
<term><command>scriptreplay</command></term>
|
|
<listitem>
|
|
<para>Plays back typescripts using timing information</para>
|
|
<indexterm zone="ch-system-util-linux scriptreplay">
|
|
<primary sortas="b-scriptreplay">scriptreplay</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="setarch">
|
|
<term><command>setarch</command></term>
|
|
<listitem>
|
|
<para>Changes reported architecture in a new program environment and
|
|
sets personality flags</para>
|
|
<indexterm zone="ch-system-util-linux setarch">
|
|
<primary sortas="b-setarch">setarch</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="setsid">
|
|
<term><command>setsid</command></term>
|
|
<listitem>
|
|
<para>Runs the given program in a new session</para>
|
|
<indexterm zone="ch-system-util-linux setsid">
|
|
<primary sortas="b-setsid">setsid</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="setterm">
|
|
<term><command>setterm</command></term>
|
|
<listitem>
|
|
<para>Sets terminal attributes</para>
|
|
<indexterm zone="ch-system-util-linux setterm">
|
|
<primary sortas="b-setterm">setterm</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="sfdisk">
|
|
<term><command>sfdisk</command></term>
|
|
<listitem>
|
|
<para>A disk partition table manipulator</para>
|
|
<indexterm zone="ch-system-util-linux sfdisk">
|
|
<primary sortas="b-sfdisk">sfdisk</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="swaplabel">
|
|
<term><command>swaplabel</command></term>
|
|
<listitem>
|
|
<para>Allows to change swaparea UUID and label</para>
|
|
<indexterm zone="ch-system-util-linux swaplabel">
|
|
<primary sortas="b-swaplabel">swaplabel</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="swapoff">
|
|
<term><command>swapoff</command></term>
|
|
<listitem>
|
|
<para>Disables devices and files for paging and swapping</para>
|
|
<indexterm zone="ch-system-util-linux swapoff">
|
|
<primary sortas="b-swapoff">swapoff</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="swapon">
|
|
<term><command>swapon</command></term>
|
|
<listitem>
|
|
<para>Enables devices and files for paging and swapping and
|
|
lists the devices and files currently in use</para>
|
|
<indexterm zone="ch-system-util-linux swapon">
|
|
<primary sortas="b-swapon">swapon</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="switch_root">
|
|
<term><command>switch_root</command></term>
|
|
<listitem>
|
|
<para>Switches to another filesystem as the root of the mount tree</para>
|
|
<indexterm zone="ch-system-util-linux switch_root">
|
|
<primary sortas="b-switch_root">switch_root</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="tailf">
|
|
<term><command>tailf</command></term>
|
|
<listitem>
|
|
<para>Tracks the growth of a log file. Displays the last 10 lines
|
|
of a log file, then continues displaying any new entries in the
|
|
log file as they are created</para>
|
|
<indexterm zone="ch-system-util-linux tailf">
|
|
<primary sortas="b-tailf">tailf</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="taskset">
|
|
<term><command>taskset</command></term>
|
|
<listitem>
|
|
<para>Retrieves or sets a process' CPU affinity</para>
|
|
<indexterm zone="ch-system-util-linux taskset">
|
|
<primary sortas="b-taskset">taskset</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="tunelp">
|
|
<term><command>tunelp</command></term>
|
|
<listitem>
|
|
<para>Tunes the parameters of the line printer</para>
|
|
<indexterm zone="ch-system-util-linux tunelp">
|
|
<primary sortas="b-tunelp">tunelp</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="ul">
|
|
<term><command>ul</command></term>
|
|
<listitem>
|
|
<para>A filter for translating underscores into escape sequences
|
|
indicating underlining for the terminal in use</para>
|
|
<indexterm zone="ch-system-util-linux ul">
|
|
<primary sortas="b-ul">ul</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="umount">
|
|
<term><command>umount</command></term>
|
|
<listitem>
|
|
<para>Disconnects a file system from the system's file tree</para>
|
|
<indexterm zone="ch-system-util-linux umount">
|
|
<primary sortas="b-umount">umount</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="unshare">
|
|
<term><command>unshare</command></term>
|
|
<listitem>
|
|
<para>Runs a program with some namespaces unshared from parent</para>
|
|
<indexterm zone="ch-system-util-linux unshare">
|
|
<primary sortas="b-unshare">unshare</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="uuidd">
|
|
<term><command>uuidd</command></term>
|
|
<listitem>
|
|
<para>A daemon used by the UUID library to generate time-based
|
|
UUIDs in a secure and guranteed-unique fashion.</para>
|
|
<indexterm zone="ch-system-util-linux uuidd">
|
|
<primary sortas="b-uuidd">uuidd</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="uuidgen">
|
|
<term><command>uuidgen</command></term>
|
|
<listitem>
|
|
<para>Creates new UUIDs. Each new UUID can reasonably be considered
|
|
unique among all UUIDs created, on the local system and on other
|
|
systems, in the past and in the future</para>
|
|
<indexterm zone="ch-system-util-linux uuidgen">
|
|
<primary sortas="b-uuidgen">uuidgen</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="wall">
|
|
<term><command>wall</command></term>
|
|
<listitem>
|
|
<para>Displays the contents of a file or, by default, its standard
|
|
input, on the terminals of all currently logged in users</para>
|
|
<indexterm zone="ch-system-util-linux wall">
|
|
<primary sortas="b-wall">wall</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="whereis">
|
|
<term><command>whereis</command></term>
|
|
<listitem>
|
|
<para>Reports the location of the binary, source, and man page
|
|
for the given command</para>
|
|
<indexterm zone="ch-system-util-linux whereis">
|
|
<primary sortas="b-whereis">whereis</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="wipefs">
|
|
<term><command>wipefs</command></term>
|
|
<listitem>
|
|
<para>Wipes a filesystem signature from a device</para>
|
|
<indexterm zone="ch-system-util-linux wipefs">
|
|
<primary sortas="b-wipefs">wipefs</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="write">
|
|
<term><command>write</command></term>
|
|
<listitem>
|
|
<para>Sends a message to the given user <emphasis>if</emphasis> that
|
|
user has not disabled receipt of such messages</para>
|
|
<indexterm zone="ch-system-util-linux write">
|
|
<primary sortas="b-write">write</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libblkid">
|
|
<term><filename class="libraryfile">libblkid</filename></term>
|
|
<listitem>
|
|
<para>Contains routines for device identification and token
|
|
extraction</para>
|
|
<indexterm zone="ch-system-util-linux libblkid">
|
|
<primary sortas="c-libblkid">libblkid</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libuuid">
|
|
<term><filename class="libraryfile">libuuid</filename></term>
|
|
<listitem>
|
|
<para>Contains routines for generating unique identifiers for objects
|
|
that may be accessible beyond the local system</para>
|
|
<indexterm zone="ch-system-util-linux libuuid">
|
|
<primary sortas="c-libuuid">libuuid</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
|
|
</sect2>
|
|
|
|
</sect1>
|